The Supreme Court has preserved a key part of the Affordable Care Act’s preventive health care coverage requirements, rejecting a challenge from Christian employers to the provision that affects 150 million Americans.

Siding with the government on Friday, the court upheld the Affordable Care Act, allowing the U.S. Preventive Services Task Force to continue determining which services will be available free of cost to Americans covered by the Affordable Care Act.

The U.S. Supreme Court on Friday preserved a key element of the Obamacare law that helps guarantee that health insurers cover preventive care such as cancer screenings and HIV prevention medication at no cost to patients.